Put the yeast dough into a cake pan (ø 20cm), the dough edge should be quite high. Cut the bacon to little pieces and roast them in a pan. Afterswards put the bacon on the dough, pour the dripping over it. Chop up the scallions and spread them over the bacon. Beat the eggs with the cream, add the melted butter, salt and pepper, and pour the mixture over the dough. Bake the quiche 30-35min in the hot oven.